一种用于图像传感器标定的干涉条纹畸变矫正方法

来源 :传感器世界 | 被引量 : 0次 | 上传用户:szw_jlcc
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本发明涉及一种用于图像传感器标定的干涉条纹畸变矫正方法,包括:利用阵列探测器采集多帧静态干涉条纹图像、动态干涉条纹图像、平场图像以及相同条件下对应的暗场图像;对静态干涉条纹图像进行预处理;利用预处理之后的干涉条纹图像计算空间频率;利用的空间频率以及干涉激光的频率差计算条纹运动速度;利用条纹运动速度以及阵列探测器相关的指标参数获得仿射变换矩阵;利用仿射变换矩阵对带有畸变的动态干涉条纹图像进行仿射变换,得到畸变矫正后的图像。 The present invention relates to a method for correcting interference fringe distortion in an image sensor. The method includes: acquiring a plurality of frames of static interference fringes, dynamic interference fringes, flat images and corresponding dark images under the same conditions by using an array detector; The static interference fringe image is preprocessed, the fringe fringe image is calculated by using the pre-processed fringe image, the fringe motion velocity is calculated by using the spatial frequency and the interference laser frequency difference, the affine is obtained by using the fringe moving velocity and the index parameters related to the array detector Transform matrix; affine transformation matrix with distortion of the dynamic interference fringe image affine transform obtained distortion correction of the image.
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